stairson Basic wordsalso onCEFR Elementary (A2)? CEFR Intermediate (B1)? Band 1 (BND1)? 楼梯,阶 downstairs downstairs(noun) 楼下 stair stair(noun) 梯级,楼梯,阶梯 upstairs upstairs(noun) 楼上 downstairs downstairs(adjective) 楼下的 downstairs downstairs(adverb) 向[往]楼下,在楼下 stairs stairs(noun) 楼梯,阶 upstairs upstairs(adjective) 楼上的 upstairs upstairs(adverb) 上楼,向楼上,在楼上,往楼上 Forms nounadjectiveadverb downstairs downstairs downstairs stair upstairs upstairs upstairs stairs